2008-21

Underwater canyon mapping reveals more seafloor secrets
This diagram shows cross-section views of the Moeraki/Haast channel system.
NIWA scientists have completed another successful voyage to the west coast of the South Island to study the enormous underwater canyon system in the area.
During the 15-day voyage, RV Tangaroa crossed the canyons region collecting mulitbeam bathymetry to map two tributary systems of the Cook/Hokitika canyon system and an additional 400 kilometres of the Moeraki/Haast canyon system.

Preparing for the effects of climate change in coastal areas
Coastal Hazards and Climate Change – A Guidance Manual for Local Government in New Zealand
NIWA’s coastal hazards team are creating some practical tools to help planners, engineers, and other professionals involvedin coastal development.

Modelling shellfish larval dispersal
Models of cockle larvae distribution from a shallow, sheltered site in Whangarei Harbour (left) and close to main channel (right).
NIWA scientists are developing models to predict how shellfish larvae disperse.

New Zealand’s diverse seafloor sediments
New Zealand’s diverse seafloor sediments
This stunning poster updates the last New Zealand regional sediment chart, published in 1989, using new multibeam bathymetry as well as archived and previously unpublished distributions of seafloor sediments.
Available for $28, AO size (700mm x 1000mm) To order a copy go to www.niwa.co.nz/pubs/series/posters
or email: posters@niwa.co.nz